Both English and Japanese versions are fully charted using standard knitting and/or crochet symbols. Japanese version available here.
Although the picture on the website shows a duck and a sheep in the first picture, this pattern is only for a sheep. You can find the duck pattern here.
No gauge is listed in the pattern.
Materials: Japanese size 5/0, 6/0, & 7/0 crochet hook (3.0, 3.5, & 4.0mm)
The second recommended yarn, Pierrot A167 Linen, is actually 100% ramie despite the name.